San Diego County, San Diego Rat Control Situation:
Hi David, Is a UV blacklight still useful, exterior-wise, if it rains after the rodents leave their urine stains? I am in the process of performing exterior maintenance to better exclude my roof rats. 1) I have a 25 year old cedar shake roof in San Diego California with openings under each shake along the rake edge of the roof at the gable ends of my house. There's no drip edge, i.e. under the shakes I have roofing paper (now somewhat curled) that runs more or less up to and rests right atop the fascia board. Because I have skip sheathing, and since the cross section of a shake is a wedge that is up to one inch at the upper, thick end, this appears to create many huge entry points along the rake edges even though the sheathing is rabbeted into the fascia board. As a result, I'm thinking of getting a UV blacklight to use outside the house to sleuth for urine stains along the upper edge of the gable end shakes and fascia boards. My question is, how easily does the winter rain wash away the urine, rendering this a pointless exercise? 2) I noticed a new product called "rat-out gel" and was thinking of applying it along the rake edges mentioned above. Or, maybe I should just buy many rolls of X-Clude and use that instead. Or maybe both. Any comment? Thanks very much for your website, Doug
My response: First off, I do not have experience using UV lights to detect rat urine. But I do suspect that rain will severely limit the effectiveness of this approach. I have never heard of Rat-Out Gel or XClude, but I typically stick to physical barriers rather than repellent type devices. If your roof makes this impossible, you might have a tough time keeping the rats out.
San Diego Rat Control Tip of The Week
Can A Rat Have Rabies?
Rats have powerful bites:
Rats can have very powerful bites and are capable of damaging the skin quickly. A rat can bite through cinderblocks to get into an area if it needs to. Rats could bite through clothing or manage to break the skin even unintentionally with a very quick bite. Handling rats with care or using heavy gloves is recommended if you have to remove one or relocate it. It is ultimately best if you avoid handling rats whenever possible.
Many people are bitten each year with low rates of infection:
Rats bite over 50,000 people in the USA each year. Rabies vaccine shots are very rarely delivered in these cases and the risk for other types of diseases that rats carry can be far greater. Going to see a doctor about a rat bite can be wise if you are starting to feel some of the secondary symptoms or it looks infected.
Rats do spread disease:
Rats do spread a series of diseases including rat-bite fever. It can be transmitted through a bite or through pets. Rabies can be a deadly disease but most of the diseases that rats pass on are only able to cause the chance for fever and infection which carry lower rates of mortality.
Other animals can be much riskier to receive bites from:
If you are bitten by other animals like raccoons, coyotes, woodchucks, or skunks, this will give you a much riskier chance of receiving something like rabies. When bitten by a rat, you should be concerned but you may not have to run to get the bite checked out with the same urgency.
The main theory of low rabies cases:
A rat would have to survive a bite from a predator in order to become a carrier of rabies. As coyotes and larger animals will be likely to kill a rat in an attack, this leads to the chance of rats not being able to spread rabies at all.
